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n. An organism that has different alleles at a particular gene locus on homologous chromosomes.

n. A diploid individual that has different alleles at one or more genetic loci.

n. A bacteriophage that has two different copies of its genetic material and so produces two types of offspring.

n. A zygote formed by the union of two unlike gametes.

n. In Mendelian phraseology, a hybrid animal or plant which combines the characters of two dissimilar parents; a mule-form.

Of or pertaining to a fertilized egg, or to origin from a fertilized egg, which is formed by the union of two opposite allelomorphic germ-cells: as, heterozygote characters.

n. (genetics) an organism having two different alleles of a particular gene and so giving rise to varying offspring

"Other common autosomal recessive diseases such as sickle cell anemia have been found to protect carriers from other diseases, a concept known as heterozygote advantage."

zygote    fertilized ovum   

heterozygous